Cooking-stove



(No Model.)

A. W. WALKER.

COOKING STOVE.

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UNITED STATES PATENT @EEICE.

ARTHUR V. WALKER, OF MALDEN, MASSACHUSETTS.

COOKING-STOVE.

SPECIFICATION forming part of Letters Patent No. 447,548, dated March 3,1891.

Application filed October 2, 1890. Serial No. 866,834. (No model.)

To all whom, it may concern.-

Be it known that I, ARTHUR W. WALKER,

of Malden, county of Middlesex, State of Massachusetts, have invented anImprovement in Cooking-Stoves, of which the follow ing description, inconnection with the accompanying drawings is a specification, likeletters and figures on the drawings representing like parts.

In the use of cooking-stoves it is frequently very desirable to have alight slow fire, which enables the heat from the coal being burned to bemost economically and effectually used for baking, &c., and at the sametime that the coal is saved the stove by the less amount of heat doesnot radiate into the room the same amount of heat as when a largercoal-space filled with burning coal in thick layers is being used.

In accordance with my invention I have devised a shaking grate, whichmay be quickly elevated in the fire-box whenever it is desired todecrease the efiective depth of the fire-box to burn less coal. This Ihave accomplished in a very simple manner by mounting the journals ofthe grate in bearings attached to arms of a grate-lifting rockshaftwhich is adapted to both slide sidewise and to also partially rotate ina long bearing at each end of the fire-box and substantially at rightangles to the journals of the grate.

Figure 1 is a top or plan view of a fire-box and grate therein embodyingmy invention; Fig. 2, a partial longitudinal section in the line as,Fig. 1; Fig. 3, an end view of the fire box or basket, looking from theright in Fig. 1. Fig. 4 is a cross-section in the line as, Fig. 1, thesaid figure by dotted lines showing the grate as lifted; and Fig. 5shows the gratelifting shaft detached.

The fire-box, composed of the end walls ab and back and front plates 0cl, is formed as usual in cooking-stoves. The grate e, of

usual shape, has journals 6' 6 which when the grate is lifted, as willbe described, slide in guideways made in the end walls. These journalsrest in notched bearings ff, formed in arms f f extended laterallythereon and forming part of a grate-lifting shaft f so supported, aswill be described, that it may have not only a rocking but also alateral sliding movement, the said shaft f having, as shown, a squareneck to be engaged by a lever or key, by which to move the shaft whendesired. The shaft f has journals 3 4, which rest in bearing-bars g,shown as located below the fire box and grate. The journal 4 isprolonged by a crank 5 6, which is adapted to be engaged by the regularsh aking-handle, which is applied to the grate end piece 10 when thegrate is to be shaken.

In Figs. 1 to 4 the full lines show the grate at the bottom of the firepot or basket, in

which position the fire pot is of greatest ca-.

pacity. In this position the grate may be rocked or shaken, as thesquare shoulder 12 of the journal e is just below the end of the guide 6If it is desired to make a smaller fire-pot fora small quick fire, thegrate will be liftedinto its dotted-line position. This may be done byapplying the usual handle or wrench to the end 6 of the cranked part ofthe grate-supporting shaft, sliding the same from its full-lineposition, Fig. 3, to the left, and at the same time turning the shaftf.This causes the arms f 2 f 3 to be lifted, their bearings f f, holdingthe journals of the grate, also rising until the grate occupies thedotted-line position shown in Fig. 4, the shaft f in its lateral orsliding movement finally arriving in position under the guide-slot andsubstantially vertically below the journals e 6 where it remains as longas the grate is to be kept up.

I do not broadly claim a grate adapted to be lifted vertically but priorto my invention I am not aware that any one has ever accomplished thisby means substantially such as I have shown and described.

I claim 1. The combination, with the fire-pot and grate provided withjournals, of a sliding and rocking shaft having laterally extended armsshaped substantially as described to re ceive and form bearings for thesaid grate and an elongated bearing for the said shaft and upon which itmay slide, substantially as described.

2. The combination, with the fire-poi; hav- I name to this specificationin the presence of iug' guides e e and the grate having its jourtwosubscribing Witnesses. HMS arranged to slide in the said guides, of a Isliding and rocking shaft having {U'IHS to re- ARTHUR \V. \VALKER. 5eeive the journals of the grate, substantially \Vitnesses:

as described. J. H. CHURCHILL,

In testimony whereof I have signed my GEO. \V. GREGORY.

